Bettomshin 10Pcs M4 Binding Screw, M4 x 40mm Nickel Plated Carbon Steel Cross Head Butt Screw Binding Post Screw Kit for Scrapbook Photo Albums Bookbinding DIY Leather Saddles Purses Belt

Bettomshin 10Pcs Butt Screw，carbon Steel Screw for Scrapbook Photo Albums Binding and Leather Saddles Introduction and Function The screw post is a component composed of a screw with a flat head cap (with or without a drive slot) with a mechanical thread and a nut with a flat head cap. It is generally made of aluminum, copper, carbon steel, stainless steel, and other materials. It is used for office stationery, leather goods, apparel, arm belts, etc. It mainly has the functions of combination, connection, fixing, and wear resistance. When the screw post is used in binding booklets, photo albums, etc., first make a hole at a suitable position, the hole is 0.5mm larger than the diameter of the nut rod of the binding bolts. According to the thickness of the booklet, select the screw corresponding to the length of the nut rod, and insert the two ends into the holes to connect and lock. On office products, furniture, DIY handicrafts, and other items. Screw posts are also very common, providing very simple installation, disassembly, assembly, maintenance, etc. Mechanical threads provide strong precision connection and locking force, can be repeated used many times, every time like new. In leather goods, there are shadows of screw posts everywhere, such as belts, harnesses, leather bags, leather boots, etc. Generally, make a hole in the leather goods first, and insert the corresponding type of screw to lock. In general, it is very sturdy, and it is also convenient for disassembly and maintenance. Specification Product Name: Butt Screw Brand: Bettomshin Material:carbon Steel Thread specification (nut/screw):M4, Groove type: cross Length under nut head: 5mm/0.20", Head diameter :9mm/0.35", Aperture : 5mm/0.20" Package Content10Pcs x Butt Screw

• 【Parameter】Screw Thread Specification: M4 x 40mm; Cap Nut Thread Specification: M4; Length Under Nut Head: 5mm/0.2inch; Nut Head Diameter: 9mm/0.35inch; Nut Aperture: 5mm/0.2inch.
• 【Good Quality】The M4 binding screw is made of quality carbon steel material, nickel plated surface, sturdy and anti-rust, easy to bind, install and remove, can use repeatedly, good tightness.
• 【Easy to Use】Easily applied with standard screwdriver. Threaded post lets you open and re-attach piece where needed.
• 【Instructions】Make a hole larger than 0.5mm than the diameter of the nut rod, put screws and nuts on both sides of the locked object, and select the appropriate tool to lock it.
• 【Wide Application】Especially suit for leather handicrafts decoration, bookbinding, document, book, album, DIY crafts, etc.